S-92205A731 1/2"-13 x 2" Sealing Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional sealing performance up to 20,000 psi with silicone rubber O-ring, preventing leaks in high-pressure applications
• Wide temperature tolerance from -80° to 400°F, maintaining integrity in extreme thermal conditions
• High tensile strength of 80,000 psi ensures reliable load-bearing capacity for demanding mechanical assemblies
• Coarse UNC threading with Class 2A fit provides quick installation and vibration resistance in heavy machinery
• External hex drive design allows for high-torque application using standard tools, reducing assembly time
• Partial threading configuration offers optimal grip and clamping force for precise joint control

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw delivers critical performance where pressure sealing and structural integrity are paramount. The combination of 18-8 stainless steel material and silicone rubber O-ring creates a robust sealing solution that withstands both extreme pressure fluctuations (up to 20,000 psi) and temperature variations (-80° to 400°F). Engineers specify these external hex drive fasteners for hydraulic systems, pressure vessels, and industrial equipment where coarse thread configuration ensures rapid assembly while maintaining vibration resistance. The partially threaded design provides precise clamping control, making these hex head screws ideal for critical joints in manufacturing, oil and gas, and heavy machinery applications where reliability cannot be compromised.

Specification Summary & Compliance

This hex head screw features precision 1/2"-13 UNC coarse threads with Class 2A thread fit tolerance for consistent engagement. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring material safety and regulatory compliance for industrial applications worldwide. The fastener meets rigorous mechanical specifications including Rockwell B85 hardness and is designed for maximum hole diameter of 0.534".